package com.justnow.offer;

/**
 * @author justnow
 * Created on 2020-08-10
 * Description
 */
public class Solution25 {
    public ListNode mergeTwoList(ListNode l1, ListNode l2) {
        ListNode dum = new ListNode(0), cur = dum;
        while (l1 != null && l2 != null) {
            if (l1.val < l2.val) {
                cur.next = l1;
                l1 = l1.next;
            } else {
                cur.next = l2;
                l2 = l2.next;
            }
            cur = cur.next;
        }

        if (l1 != null)
            cur.next = l1;
        if (l2 != null)
            cur.next = l2;
        return dum.next;
    }
}

class ListNode {
    int val;
    ListNode next;
    ListNode(int val) {
        this.val = val;
    }
}
